LN3 project possibility - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat
GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Go Back   GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat > GM Technical Discussion and Questions > Performance, Brainstorming & Tuning

Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

LinkBack Thread Tools Search this Thread
Old 05-12-2007, 08:56 PM   #1
Junior Member
Join Date: Mar 2006
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
myfirstbonnie is on a distinguished road
Default LN3 project possibility

I know it has been asked many times about getting more out of an LN3 and the weak trannies in the 88-91'*, but just wondering if anyone has done any mods to them. I have heard of porting and polishing other models and just wondering what others have tried.

The reason I am asking is because of my 89. I will be getting another bonnie in the near future and I plan on doing some work to my 89 and limit it'* use. I would like to do some trials of different things with it. A project / toy if you would say.

Anybody have any plausible ideas of things to try? I am planning on stripping the motor down for a complete rebuild and eventually the tranny. So, if I do the work on the motor first and the tranny goes I won't be upset. I really just want to see what could be done with one of these.
myfirstbonnie is offline   Reply With Quote
Old 05-13-2007, 03:21 AM   #2
Junior Member
Join Date: May 2006
Location: BonnevilleHell
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
clm2112 is on a distinguished road
Default Re: LN3 project possibility

The normal tricks applied to other engines apply just as well to the LN3. It'* a motor. Smoothing out the airflow into and out of the stock parts will work. Depending on the current condition, a basic overhaul, with matching of gasket flanges and clean injectors will make it better than original.

As mods: Do the 180 T-stat, a CAI with a good filter, get a scan tool, and check out how well it runs on the factory calibration. Get the scan tool first and use it on the car to see what it'* doing now...that will go a long way towards figuring out which systems are screwed up now and give you a baseline to compare back to.
clm2112 is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery possibility? RJGill84 2000-2005 0 11-27-2007 04:58 AM
Possibility of a S1 I/C? Bonneville92V688 Forced Induction 2 12-11-2006 12:53 PM
stole the words right out of my mouth (repost possibility) bonnie94ssei Lounge 13 05-26-2006 11:48 PM
Job possibility, but I saw something....... NiKo Lounge 13 05-15-2006 08:36 PM
Shiftknob possibility NiKo General GM Chat 1 08-05-2003 06:16 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 01:55 AM.